Nitrous Express DIESEL STACKER NITROUS NXD1000 - Manual (Page 4)

POWER TUNING TIPS:
Nitrous oxide works well with all applications; 4 cycle, 2 cycle, diesel, and rotary engines. Each one has
individual tuning characteristics, and these tips apply generally to each one. Nitrous oxide is referred to as “Liquid
Supercharging” because it, in effect, does the same thing as a mechanical supercharger, forcing more fuel and oxygen
into each cylinder, thus producing more power. The biggest enemy of all supercharged, turbo charged and nitrous
injected engines is “DETONATION”. The use of higher-octane fuel, and or a combination of better fuel and timing
retard can control this. Remember detonation is a spark plug, head gasket and engine “KILLER”.
1. Your engine should be tuned to its maximum power prior to nitrous usage.
2. The ignition is an integral part of the nitrous system and must be able to ignite the mixture under very high cylinder
pressures. The hotter the spark the better!
3. In stock engine applications and street usage the spark plugs should be at least 2 steps colder than stock. Do not use
platinum tip, extended tip or any plug with multiple ground straps or split ground straps. When in doubt about
heat range always go one step colder. A spark plug that is to “Hot” will cause detonation, burned plugs, poor
performance, and engine damage. In competition engines always use the coldest plug available. Never use an
extended tip plug in a racing engine.
4. The NX nitrous system is so advanced, (technology, engineering, and workmanship) that huge amounts of timing
retard is not required. You may run as much timing as you normally would, if you have the octane required to
prevent detonation. We recommend 1 degree timing retard for each 50 horsepower boost as a starting point. Your
engine may need more or less depending on your combination.
5. Your fuel system is also an integral part of the nitrous system, be sure it is in top shape and all filters are clean.
6. Engine operating temperature should be between 160 and 200 degrees prior to nitrous usage.
7. Never “lug” your engine and hit the nitrous system, use the system at wide-open throttle only, nitrous should not be
used below 3000 rpm’s. If you do any of the above a serious “Back Fire” could result in engine damage.
8. The better the exhaust system the better the nitrous system will work.
9. Do not attempt to drill or alter the jets, solenoids, or the tubes in the nitrous plate. These items are engineered to
their maximum capability. Any modification you can make will decrease power and destroy engine parts.
10. Do not mix or attempt to match any other brand solenoids with this system. Do not attempt to mix or match any
other brand plate or nozzle with this system. Do not attempt to use any other brand kit as a second stage with this
system. Our nitrous technology is far superior to any of our competitors. Any attempt at this could lead to serious
engine damage.
11. All of our systems are designed to operate at 1050 PSI bottle pressure. This is extremely important and cannot be
stressed enough. If your bottle pressure is below 1050 PSI the system will run rich and will not produce the
advertised horsepower. If the bottle pressure is above 1050 PSI the system will run lean, possibly damaging
engine parts. This pressure is easily monitored by using a NX liquid filled pressure gauge (PN 15509). Note:
When the ambient temperature is below 97 degrees a bottle warmer is required (PN 15940 or 15941). An NX
bottle jacket (PN15945 or 15946) will help stabilize bottle pressure in the winter and summer.
CAUTION: NEVER USE AN OPEN FLAME TO HEAT A NITROUS BOTTLE. THIS IS A VERY
DANGEROUS AND POTENTIALLY FATAL PRACTICE!!!!!!!!!!!
12. A purge valve (PN15600-15601) is recommended on all NX systems. When the weather begins to get hot a purge
valve is worth up to a tenth of a second on a 1⁄4 mile pass. Note: The correct purging procedure for drag racing is:
1. Complete the burnout. 2. Light the pre-stage bulb. 3. Push the purge button three times, one second each. 4.
Stage immediately, GO FAST.
13. If there is a question about the purity of your nitrous supply, a filter (PN15610 or 15607) should be used when
refilling your bottle. Just attach the filter to your bottle when you take it to be refilled. Contaminated nitrous will
cause serious damage to the nitrous solenoids and possibly to your engine. This is a lifetime renewable filter.
14. If you have questions about the suitability of your torque converter or gear ratios, call the factory tech line for the
inside scoop.
15. Your nitrous bottle should be turned off when not in use (even between runs). An NX remote bottle opener (PN
11107) will make this task much easier.
16. Start with the lowest power setting in your system. Don’t try to be the track “Hero” on your first pass. Remember
start out small and work your way up, NX systems produce more real horsepower than any other brand on the
market today.